package com.yu1996.gulimall.product.config;

import com.alibaba.fastjson.support.spring.GenericFastJsonRedisSerializer;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.autoconfigure.cache.CacheProperties.Redis;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.RedisSerializationContext.SerializationPair;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@EnableConfigurationProperties(CacheProperties.class)
@EnableCaching // 开启缓存注解
@Configuration
public class MyCacheConfig {

  @Bean
  RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {
    RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
    config =
        config.serializeKeysWith(SerializationPair.fromSerializer(new StringRedisSerializer()));
    config =
        config.serializeValuesWith(
            SerializationPair.fromSerializer(new GenericFastJsonRedisSerializer()));
    // 为防止过期时间等配置失效，我们需要加入自动配置的一些内容
    Redis redisProperties = cacheProperties.getRedis();
    if (redisProperties.getTimeToLive() != null) {
      config = config.entryTtl(redisProperties.getTimeToLive());
    }
    if (redisProperties.getKeyPrefix() != null) {
      config = config.prefixKeysWith(redisProperties.getKeyPrefix());
    }
    if (!redisProperties.isCacheNullValues()) {
      config = config.disableCachingNullValues();
    }
    if (!redisProperties.isUseKeyPrefix()) {
      config = config.disableKeyPrefix();
    }
    return config;
  }
}
